DELTA 1 DEB, 21461
Orbit data source: Space-Track
DELTA 1 DEB, 21461 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
21461 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 DELTA 1 DEB
1 21461U 75052EV 26241.73879171 .00000050 00000-0 20112-3 0 9995
2 21461 99.7325 331.8052 0204712 238.0646 277.2175 13.20528058700404Epoch: 2026-08-29T17:43Z
TLE epoch observation values (Epoch: 2026-08-29T17:43:51.603Z)
Latitude
26.66759°
Longitude
-87.18768°
Altitude
1,169.489 km
Speed
7.279 km/s
True Right ascension
10h 26m 53s
True Declination
26° 32' 15"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
06:45:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,334.77 km
Perigee altitude
1,025.319 km
Semi-major axis
7,558.182 km
Eccentricity
0.02047
Inclination
99.7325°
RAAN
331.8052°
Arg. of periapsis
238.0646°
True anomaly
274.8834°
Mean anomaly
277.2175°
Eccentric anomaly
276.05112°
Mean motion
3.30307 °/min
Orbital period
108.99 mins
BSTAR
0.00020112
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.DELTA 1 DEB Visibility forecast
Loading observer location...
Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-08-30 17:15:18.557Z | 58.015° ENE | 2026-08-30 17:18:18.557Z | 83.272° E | 13.837° | 2026-08-30 17:21:18.557Z | 110.467° ESE |
| 12 mins | 2026-08-30 19:01:18.557Z | 15.425° NNE | 2026-08-30 19:07:18.557Z | 162.083° S | 44.96° | 2026-08-30 19:13:18.557Z | 195.833° SSW |
| 7 mins | 2026-08-30 20:50:18.557Z | 335.328° NNW | 2026-08-30 20:53:18.557Z | 307.779° NW | 17.668° | 2026-08-30 20:57:18.557Z | 270.382° WNW |
| 4 mins | 2026-08-31 03:44:18.557Z | 61.169° ENE | 2026-08-31 03:45:18.557Z | 53.318° ENE | 12.102° | 2026-08-31 03:48:18.557Z | 30.09° NE |
| 13 mins | 2026-08-31 05:25:18.557Z | 142.854° SSE | 2026-08-31 05:31:18.557Z | 76.981° E | 40.565° | 2026-08-31 05:38:18.557Z | 354.294° N |
| 11 mins | 2026-08-31 07:14:18.557Z | 216.901° SW | 2026-08-31 07:19:18.557Z | 266.664° W | 25.958° | 2026-08-31 07:25:18.557Z | 321.09° NNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|